# Drupal Core vulnerabilities Source: https://junglewise.ai/threats/technologies/drupal-core Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/drupal-core.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 17 vulnerabilities in Drupal Core: 0 in the last 7 days and 2 in the last 90 days, 5 of them critical and 5 exploited in the wild. The most recent, CVE-2026-55805, was published on 25 August 2026. Nothing was published in the last eight weeks. ## Counts - Last 7 days: 0 - Last 30 days: 0 - Last 90 days: 2 - All time: 17 (5 critical, 5 exploited in the wild) ## About Drupal Core Drupal Core is a free and open-source content management system and web application framework written in PHP. ## Latest Drupal Core vulnerabilities - [CVE-2026-55805: Drupal stored cross-site scripting in Layout Builder](https://junglewise.ai/threats/cve-2026-55805-drupal-stored-cross-site-scripting-in-layout-builder) (medium, CVSS 5.4, published 25 Aug 2026) - [CVE-2026-15917: Drupal core cross-site scripting in HTMX attribute sanitization](https://junglewise.ai/threats/cve-2026-15917-drupal-core-cross-site-scripting-in-htmx-attribute-sanitization) (medium, CVSS 4.7, published 25 Aug 2026) - [CVE-2026-55808: Drupal core XSS via improper image upload validation in JSON:API and REST](https://junglewise.ai/threats/cve-2026-55808-drupal-core-xss-via-improper-image-upload-validation-in-json-api) (info, CVSS 4.2, published 10 Jul 2026) - [CVE-2026-55807: Drupal Drupal core SSRF in Media module oEmbed discovery](https://junglewise.ai/threats/cve-2026-55807-drupal-drupal-core-ssrf-in-media-module-oembed-discovery) (info, CVSS 5.4, published 10 Jul 2026) - [CVE-2026-55806: Drupal core open redirect and cache poisoning in rebuild.php](https://junglewise.ai/threats/cve-2026-55806-drupal-core-open-redirect-and-cache-poisoning-in-rebuild-php) (info, CVSS 3.7, published 10 Jul 2026) - [CVE-2026-55804: Drupal core object injection gadget chain](https://junglewise.ai/threats/cve-2026-55804-drupal-core-object-injection-gadget-chain) (info, CVSS 0, published 10 Jul 2026) - [CVE-2026-55803: Drupal core PHP object injection in JSON:API](https://junglewise.ai/threats/cve-2026-55803-drupal-core-php-object-injection-in-json-api) (info, CVSS 8.8, published 10 Jul 2026) - [CVE-2026-9082: Drupal Drupal core SQL injection in database abstraction API](https://junglewise.ai/threats/cve-2026-9082-drupal-drupal-core-sql-injection-in-database-abstraction-api) (critical, exploited in the wild, CVSS 9.8, published 20 May 2026) - [CVE-2026-6367: Drupal Drupal core stored XSS in CKEditor 5 entity suggestions](https://junglewise.ai/threats/cve-2026-6367-drupal-drupal-core-stored-xss-in-ckeditor-5-entity-suggestions) (medium, CVSS 6.1, published 19 May 2026) - [CVE-2026-6366: Drupal Drupal core Object Injection gadget chain](https://junglewise.ai/threats/cve-2026-6366-drupal-drupal-core-object-injection-gadget-chain) (medium, CVSS 6.6, published 19 May 2026) - [CVE-2026-6365: Drupal core cross-site scripting in AJAX modal dialog boxes](https://junglewise.ai/threats/cve-2026-6365-drupal-core-cross-site-scripting-in-ajax-modal-dialog-boxes) (medium, CVSS 6.1, published 19 May 2026) - [CVE-2018-7602: Drupal Core Remote Code Execution Vulnerability](https://junglewise.ai/threats/cve-2018-7602-drupal-core-remote-code-execution-vulnerability) (critical, exploited in the wild, CVSS 3.1, published 23 Apr 2024) - [CVE-2018-7600: Drupal Core Remote Code Execution Vulnerability](https://junglewise.ai/threats/cve-2018-7600-drupal-core-remote-code-execution-vulnerability) (critical, exploited in the wild, CVSS 3, published 14 May 2022) - [CVE-2019-6340: Drupal Core Remote Code Execution Vulnerability](https://junglewise.ai/threats/cve-2019-6340-drupal-core-remote-code-execution-vulnerability) (critical, exploited in the wild, CVSS 3, published 13 May 2022) - [CVE-2020-13671: Drupal core Unrestricted Upload of File with Dangerous Type](https://junglewise.ai/threats/cve-2020-13671-drupal-core-un-restricted-upload-of-file) (critical, exploited in the wild, CVSS 3.1, published 12 Oct 2021) - [CVE-2021-33829: CKEditor 4 cross-site scripting in HTML Data Processor](https://junglewise.ai/threats/cve-2021-33829-ckeditor-4-cross-site-scripting-in-html-data-processor) (low, CVSS 3.1, published 26 May 2021) - [CVE-2019-11358: PYSEC-2026-628 - XSS in jQuery as used in Drupal, Backdrop CMS, and other products](https://junglewise.ai/threats/cve-2019-11358-jquery-prototype-pollution-leading-to-xss) (low, CVSS 3.1, published 17 Apr 2019) ## Most severe Drupal Core vulnerabilities - [CVE-2026-9082: Drupal Drupal core SQL injection in database abstraction API](https://junglewise.ai/threats/cve-2026-9082-drupal-drupal-core-sql-injection-in-database-abstraction-api) (critical, exploited in the wild, CVSS 9.8, published 20 May 2026) - [CVE-2018-7602: Drupal Core Remote Code Execution Vulnerability](https://junglewise.ai/threats/cve-2018-7602-drupal-core-remote-code-execution-vulnerability) (critical, exploited in the wild, CVSS 3.1, published 23 Apr 2024) - [CVE-2020-13671: Drupal core Unrestricted Upload of File with Dangerous Type](https://junglewise.ai/threats/cve-2020-13671-drupal-core-un-restricted-upload-of-file) (critical, exploited in the wild, CVSS 3.1, published 12 Oct 2021) - [CVE-2018-7600: Drupal Core Remote Code Execution Vulnerability](https://junglewise.ai/threats/cve-2018-7600-drupal-core-remote-code-execution-vulnerability) (critical, exploited in the wild, CVSS 3, published 14 May 2022) - [CVE-2019-6340: Drupal Core Remote Code Execution Vulnerability](https://junglewise.ai/threats/cve-2019-6340-drupal-core-remote-code-execution-vulnerability) (critical, exploited in the wild, CVSS 3, published 13 May 2022) - [CVE-2026-6366: Drupal Drupal core Object Injection gadget chain](https://junglewise.ai/threats/cve-2026-6366-drupal-drupal-core-object-injection-gadget-chain) (medium, CVSS 6.6, published 19 May 2026) - [CVE-2026-6365: Drupal core cross-site scripting in AJAX modal dialog boxes](https://junglewise.ai/threats/cve-2026-6365-drupal-core-cross-site-scripting-in-ajax-modal-dialog-boxes) (medium, CVSS 6.1, published 19 May 2026) - [CVE-2026-6367: Drupal Drupal core stored XSS in CKEditor 5 entity suggestions](https://junglewise.ai/threats/cve-2026-6367-drupal-drupal-core-stored-xss-in-ckeditor-5-entity-suggestions) (medium, CVSS 6.1, published 19 May 2026) - [CVE-2026-55805: Drupal stored cross-site scripting in Layout Builder](https://junglewise.ai/threats/cve-2026-55805-drupal-stored-cross-site-scripting-in-layout-builder) (medium, CVSS 5.4, published 25 Aug 2026) - [CVE-2026-15917: Drupal core cross-site scripting in HTMX attribute sanitization](https://junglewise.ai/threats/cve-2026-15917-drupal-core-cross-site-scripting-in-htmx-attribute-sanitization) (medium, CVSS 4.7, published 25 Aug 2026) ## Vulnerabilities per week Nothing was published in the last eight weeks. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 2 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Drupal technologies - [Drupal Webform](https://junglewise.ai/threats/technologies/webform): 20 vulnerabilities - [Drupal](https://junglewise.ai/threats/technologies/drupal): 14 vulnerabilities - [Drupal Ajenti Core](https://junglewise.ai/threats/technologies/core): 11 vulnerabilities - [Drupal AI](https://junglewise.ai/threats/technologies/drupal-ai-1): 10 vulnerabilities - [Drupal Commerce Core](https://junglewise.ai/threats/technologies/commerce-core): 4 vulnerabilities - [Drupal Commerce Stripe](https://junglewise.ai/threats/technologies/commerce-stripe): 4 vulnerabilities - [Drupal Authenticator Login Plus](https://junglewise.ai/threats/technologies/authenticator-login-plus): 3 vulnerabilities - [Drupal Commerce License](https://junglewise.ai/threats/technologies/commerce-license): 3 vulnerabilities - [Drupal Commerce](https://junglewise.ai/threats/technologies/drupal-commerce-1): 3 vulnerabilities - [Drupal Gammu SMS Daemon](https://junglewise.ai/threats/technologies/gammu-sms-daemon): 3 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Drupal Core vulnerabilities", https://junglewise.ai/threats/technologies/drupal-core, 13 November 2026.